Before they were TV stars, The Chipmunks were rendered as rodents - not what you want around the house on Christmas morning. Their look was soon softened, making them appear less likely to chew up your furniture. They got more human-looking over the years, complete with five fingers on each hand and less pronounced snouts. By 2015, they were wearing shoes - apparently these chipmunks don't have to climb trees.

"The Cave" by Mumford & Sons is based on the philosophy of Plato and his work called "Allegory of the Cave."

An unknown Kesha (known then as Ke$ha) sang on Flo-Rida's #1 hit "Right Round," but refused to appear in the video because she wanted to make a name for herself.

The Simon & Garfunkel song "Mrs. Robinson" was originally called "Mrs. Roosevelt," most likely after First Lady Eleanor Roosevelt. The title was changed when it was considered for use in the film The Graduate, where Anne Bancroft's character is Mrs. Robinson.
John Steinbeck's novel The Grapes of Wrath got its title from a line in "The Battle Hymn of the Republic": "He is trampling out the vintage where the grapes of wrath are stored."

Thirty years after Jimi Hendrix played "Fire" at Woodstock, Red Hot Chili Peppers played it at Woodstock '99, but this time the unruly crowd actually set fires and looted.
Chad tells tales from his time as drummer for Nirvana, and talks about his group Before Cars.
The Red Hot Chili Peppers have some rather unusual song titles - see if you can spot the real ones.
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
Can you be married in one country but not another? Only if you're part of a gay couple. One of the first famous singers to come out as a lesbian, Janis wrote a song about it.
The hitmaking songwriter/producer Sam Hollander with stories about songs for Weezer, Panic! At The Disco, Train, Pentatonix, and Fitz And The Tantrums.